PHP的几个常用数字判断函数代码

PHP 2018-12-30

<div class="codetitle"><a style="CURSOR: pointer" data="6800" class="copybut" id="copybut6800" onclick="doCopy('code6800')"> 代码如下:

<div class="codebody" id="code6800">

常用的数值判断<a href="https://www.jb51.cc/tag/hanshu/" target="_blank" class="keywords">函数</a>

<?
//判断数组
$colors = array("red","blue","green");
if(is_array($colors))
{
print("colors is an array"."
");
}
//双精度数判断
$Temperature = 15.23;
if(is_double($Temperature))
{
print("Temperature is a double"."
");
}
//整数判断
$PageCount = 2234;
if(is_integer($PageCount))
{
print("$PageCount is an integer"."
");
}
//对象判断
class widget
{
var $name;
var $length;
}
$thing = new widget;
if(is_object($thing))
{
print("thing is an object"."
");
}
//字符判断
$Greeting = "Hello";
if(is_string($Greeting))
{
print("Greeting is a string"."
");
}
?>

数字判断

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